Is there a serve zone?
(VOLLEYBALL)

True or False

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The change in the momentum of the bus is 10600 kg-m/s, if bus of 1600 kg crashes with a SUV of 600 kg.

The mass of the bus, m₁ = 1600 kg

The mass of the SUV, m₂ = 600 kg

Initial velocity of the bus, v₁ = 10 m/s

initial velocity of the SUV, v₂ = 0 (at rest)

Velocity of the bus after collision, v₃ = 3 m/s

Velocity of the SUV after collision, v₄ = 1 m/s

The change in momentum(Δp) is given by,

Δp = (m₁v₁ + m₂v₂) - (m₁v₃ + m₂v₄)

Δp = (1600 × 10 + 600 × 0) - (1600 × 3 + 600 × 1)

Δp = 16000 - 5400

Δp = 10600 kg-m/s

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Force magnitude when elevator is traveling at constant velocity is, 637 N. Force magnitude does the scale read when the elevator slows to a stop is,  429 N (downward force). Force magnitude when elevator starts downward again is, 208 N.

Force magnitude when elevator is traveling at constant velocity, 65 kg x 9.8 m/s^2 = 637 N (upward force)

When the elevator slows to a stop with an acceleration of magnitude 2.0 m/s^2, the net force acting on the student is the sum of the gravitational force and the force exerted by the scale.

Net force: (65 kg) x (2.0 m/s^2) = 130 N (downward force)

Force magnitude when elevator slows to a stop: 637 N - 130 N = 507 N (upward force)

When the elevator starts moving downward again with an acceleration of magnitude 2.0 m/s^2, the net force is difference between the gravitational force and the force exerted by the scale,

Net force: (65 kg) x (9.8 m/s^2 - 2.0 m/s^2) = 429 N (downward force)

Force magnitude when elevator starts downward again: 637 N - 429 N = 208 N (upward force)

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Solve the given problem as

The distance on the screen between the m = 4 maxima and the central maximum of the two-slit diffraction pattern is 2.9 cm.

In a two-slit diffraction pattern, when a coherent light source passes through two closely spaced slits, interference patterns are observed on a screen placed behind the slits. These patterns consist of a central maximum and several adjacent maxima and minima. The distance between the central maximum and the adjacent maxima can be measured to determine the characteristics of the diffraction pattern.

In this case, the distance of 2.9 cm represents the separation between the m = 4 maxima and the central maximum. The value of m represents the order of the maxima, where m = 0 corresponds to the central maximum. The measured distance provides information about the spacing of the slits and the wavelength of the incident light.

By analyzing this distance along with other parameters, such as the distance between the slits and the screen, the wavelength of the light can be determined using the principles of diffraction. This measurement is crucial in understanding the behavior of light and verifying the predictions of wave optics.

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Answer: thermal energy

Explanation: hope this helps

Green-colored compounds are typically a medium grit polish.

The type of polish grade that uses green-colored compounds is typically a medium grit polish. Green-colored polishing compounds are often used for removing scratches, refining surfaces, and preparing the material for a final polish with a finer compound. They are commonly employed on metals, such as brass, copper, and stainless steel.

each higher education institution sets their grading scale to assess students' performance. However, the most common scale is indicated in the table below:  

                                                                                                                                                                                                Description                                                Grade point

Very good (bardzo dobry)                                    - 5

Good (dobry)                                                         -  4

Satisfactory (dostateczny)                                     - 3

Unsatisfactory / fail (niedostateczny)                   -  2

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Little Red will arrive at her grandmother's house at 5 PM :)

30/10 = 3

2 + 3 = 5

Answer:d

Explanation:magnet is to weak

Answer: that means to shut your trap you little turd

Explanation:

Ensure that the starting temperatures of both gases are equal. T I let V I 1 and V I 2 be the initial volumes and n be the number of moles in each. Two of their components are maintained under constant

What does physics mean when it refers to temperature?

Heat, entropy, and statistical mechanics are all studied in physics. The average of a portion of a body's internal energy is its temperature  Absolute zero is the definition of a substance's lowest attainable energy state.

Thermodynamic temperature: what is it?

The derivatives of the subsystem's flexibility with respect to its stored energy is the derivative of the thermodynamic temperature, which is the inverse. Entropy rises for a while as the internal energy of the subsystem rises, but it finally reaches its maximum value and starts to fall when the highest power states fill.

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The index of refraction of the plastic is  1.36.

The index of refraction (n) of a medium is defined as the ratio of the speed of light in a vacuum (c) to the speed of light in the medium (v):

n = c/v

In this problem, the speed of light in the plastic (v) is given as 2.199 x \(10^8\)m/s. The speed of light in a vacuum (c) is a constant and is equal to 3 x \(10^8 m/s.\)

Plugging these values into the formula for index of refraction, we get:

n = c/v = (3 x \(10^8 m/s\)) / (2.199 x \(10^8 m/s\)) ≈ 1.36

Therefore, the index of refraction of the plastic is approximately 1.36.

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Answer:

the x and y values

Explanation:

because on the table the x is the input and y is the output

The total displacement traveled by an ant walking along a road taken from the position versus time graph is

Δd = d2 - d1

Δd = Displacement

d2 = Final position

d1 = Initial position

For the first 5 seconds,

d2 = 10 cm

d1 = 2 cm

Δd = 10 - 2

Δd = 8 cm

For the next 5 seconds,

d2 = 10 cm

d1 = 10  cm

Δd = 10 - 10

Δd = 0

For the next 5 seconds,

d2 = 16 cm

d1 = 10 cm

Δd = 16 - 10

Δd = 6 cm

For the next 5 seconds,

d2 = 12 cm

d1 = 16 cm

Δd = 12 - 16

Δd = - 4cm

Total displacement = 8 + 6 - 4

Total displacement = 10 cm

Therefore, the total displacement traveled is 10 cm

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Proper maintenance of a vessel has numerous benefits, including: Improved safety, Extended Life, Better Performance, Reduced Costs and Regulatory Compliance.

Improved Safety: Regular maintenance helps ensure that the vessel is in good working order, reducing the risk of accidents or equipment failure. This can prevent costly and sometimes dangerous mishaps, especially at sea.

Extended Life: Proper maintenance can help extend the life of the vessel by preventing damage and deterioration. Regular inspections and repairs can catch issues early and address them before they become major problems.

Better Performance: Regular maintenance helps ensure that the vessel operates at peak performance. Clean and well-maintained engines and equipment can increase fuel efficiency and reduce emissions.

Reduced Costs: Proper maintenance can save money by reducing the need for expensive repairs or equipment replacements down the line. A well-maintained vessel also tends to have lower operating costs due to better fuel efficiency and fewer breakdowns.

Regulatory Compliance: Many countries require vessels to undergo regular inspections and maintenance to ensure compliance with safety and environmental regulations. Proper maintenance helps ensure that the vessel meets these requirements, avoiding fines and other penalties.

Overall, proper maintenance is essential for the safe and efficient operation of a vessel. Regular inspections, repairs, and cleaning can extend the life of the vessel, improve performance, and reduce costs. It can also help ensure compliance with regulatory requirements and promote a safe and responsible boating culture.

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Answer:

C

Explanation:

The earth has a curved surface. This statement explains this observation.

Due to the curvature of the Earth's surface, the spacecraft seems to drop beyond the horizon as it travels away from the spectator. An object's apparent descent below the horizon increases with increasing distance. On the open ocean, where there are no other things to serve as a reference point for the spectator, this impact is more obvious.

Because of the spherical form of the Earth, when viewed from a great distance, the surface curves away from the observer's line of sight. Ships, buildings, and other distant objects appear to drop beyond the horizon due to a phenomenon known as the "curvature of the Earth".

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Acceleration

Now

Apply Newtons second law

To find frictional force we need coefficient of friction which is not given .

generally for car case the value of coefficient is 0.6-0.8 .

Putting max 0.8

Note:

Last part is assumption not accurate

The force acting on the sports car is the product of its mass and acceleration. The force on the car is 3300 N.

Force is an external agent acting on a body to deform it or to change it from the state of rest or motion. There are different kinds of forces such as frictional force, gravitational force, nuclear force, magnetic force etc.

Frictional force is acting as a hindrance to the motion of an object. The frictional force is the product of normal force and coefficient of friction.

According to second law of motion, force is the product of mass and acceleration.

Given mass m = 1000 Kg

change in velocity = 20 - 0 m/s

Acceleration = 20 m/s / 6.6 s

= 3.3 m/s².

Force = m a

= 3.3 m/s² × 1000 Kg

= 3300 N.

Now, product of this normal force and coefficient of static friction.

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Answer:

Rigel

Explanation:

Because it has the lowest abslout magnitude.

Answer:

ans: 13.53 × 10^17 Newton

The vertical and horizontal parts of a projectile are perpendicular and independent of one another over a short distance.

Depending on the force imposed on it, horizontal motion is defined as a projectile motion in a horizontal plane. The vertical and horizontal parts of a projectile are perpendicular and independent of one another over a short distance.

Throughout the course of a projectile's flight, the horizontal component of its speed remains constant. This is because the projectile experiences no horizontal force after being launched. As a result, the projectile moves horizontally at a fixed speed.

The following equation is used to determine how far a bullet travels;

d = vt, where

t = Time

d = Distance

v = velocity

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To find

Acceleration is a change in what quantity Over time?

Explanation

Acceleration is defined as the change in velocity with respect to time interval.

Conclusion

The required quantity is

A. speed

The difference between  specific heat, heat capacity, and latent heat can be defined as

Latent heat is the amount of heat energy required to change the phase of an object, such as from a solid to a liquid or a liquid to a gas, without changing its temperature. Specific heat and heat capacity describe the amount of heat energy required to change the temperature of an object, and the relationship between them is defined as heat capacity = mass * specific heat. The specific heat of a material is a property that depends only on the material, while heat capacity depends on both the material and the mass of the object.

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The clock face rule can be used to determine this magnet's polarity. Each face of a loop will display the North Pole if indeed the current is running anticlockwise. The South Pole is visible on the loop's face.

Correct option is, E.

This dipole establishes an axis that splits the surface of the Earth into two geomagnetic poles, which are antipodal points. Its magnetic north pole is located at 72.68°W longitude with 80.65°N latitude, or the magnetic south pole is located at 107.32°E longitude or 80.65°S latitude, according to the WMM2020 coefficients in 2020.0.

In the plane of a table inside the loop, the magnetic field is directed perpendicularly downward; beyond the loop, it is directed outward. The north pole is on the plane's top side, and the south pole is on the lower side.

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Answer:

a concave lens forms a smaller, real image. { a p e x :)) }

Explanation:

hey, friend! this is the answer, but make sure that, next time, you include the diagram to make it easier for us to help you, okay?

A concave lens forming a larger real or virtual image and Concave mirrors form both real and virtual images. therefore all statements are correct. Therefore these can be interpreted by using Ray diagram.

A ray diagram is a diagram that shows path taken by light in order to see a point on the image of an object. Ray diagram uses lines with arrows to show reflected and incident ray.

A concave lens is a lens that diverges a straight light beam from the source to a diminished, upright, virtual image. It can form both real and virtual images. concave lens has curve on both side. The lens having only one side plane and other is curved inside, the les is called as planoconcave lens.

Concave mirror can form both virtual and real image that depends on the distance between the mirror and object. We get virtual and magnified image When the object is placed very close to the mirror. when distance between the object and mirror is increased, image gets diminished and real.

Both concave lens and mirror form both real and virtual images that's depend on the distance.

Hence all statements are correct.

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Sure! Here are the steps for calculating the velocity and distance traveled by the car after 50 seconds :

Step 1: Calculate the velocity using the equation:

\(v = u + at\)

where:

- \(v\) is the final velocity

- \(u\) is the initial velocity (0 m/s, as the car starts from rest)

- \(a\) is the acceleration (3 m/s²)

- \(t\) is the time (50 seconds)

Substituting the values into the equation:

\(v = 0 + (3 \, \text{m/s²}) \times (50 \, \text{s})\)

Step 2: Calculate the distance traveled using the equation:

\(s = ut + \frac{1}{2}at^2\)

where:

- \(s\) is the distance traveled

- \(u\) is the initial velocity (0 m/s)

- \(a\) is the acceleration (3 m/s²)

- \(t\) is the time (50 seconds)

Substituting the values into the equation:

\(s = 0 \times (50 \, \text{s}) + \frac{1}{2} \times (3 \, \text{m/s²}) \times (50 \, \text{s})^2\)

Now, let's simplify these equations:

\(v = 3 \times 50\)

\(s = \frac{1}{2} \times 3 \times 50^2\)

Calculating the results:

\(v = 150\) m/s

\(s = 3750\) meters

Therefore, after 50 seconds, the car will have a velocity of 150 m/s and would have traveled a distance of 3750 meters.

Answer:2AgI + Na2S → Ag2S + 2NaI I am pretty sure this is the answer

Explanation:

Io, one of Jupiter's moons, is a geologically active world with a highly volcanic surface. The absence of impact craters on Io is due to its active volcanic activity and a lack of long-term preservation of craters.

Io is subject to strong tidal forces due to its proximity to Jupiter, which generate significant internal heating that powers its volcanic activity.

This activity continuously resurfaces the moon's surface, erasing any impact craters that might have formed in the past.

In addition, Io's thin atmosphere, composed mainly of sulfur dioxide, does not provide significant protection against incoming asteroids and comets, which are capable of creating impact craters on other airless bodies.

However, the volcanic activity on Io is capable of resurfacing the moon's surface and erasing any impact craters that may have formed.

It is worth noting that while impact craters are not common on Io, some small impact features have been observed on the moon's surface, indicating that the occasional impact event can still occur.

However, these craters are small and do not last long before being erased by the volcanic activity.

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Answer: Yes, on many slate-roofed homes as temperatures change, such as cooling at night or heating during the day, thermal expansion or contraction of the slates may cause movement that in turn causes snapping, popping, or cracking noises, even bangs and clanks or clicks from the roof.

Explanation:

Answer:

because of its mealting

Explanation:

hope it helps you

Answer:

4kg=4000,8m=60 times 8 =480

4000 times 480 over 100 =19200